Swinging windows



I Jul 1e 9, 1925.

J. .1. DONOVAN SWINGING WINDOWS Filed April 26, 1924 2 Sheets-Sheet 1 v F A 7- TOR/V5 8.

June 9, 1925. 1,541,123

J. J DONOVAN SWINGING wmbows I Filed April 26, 9 2 sheets-sheet 2 Patented June 9, 1925.

UNITED STATES PATENT OFFICE. P

JOHN J. DONOVAN, OF OAKLAND, CALIFORNIA.

- swmeme wmnows.

Application filed April 26, 1924. Serial No. 709,307.

which the following is a specification.

This invention-relates to swinging windows of the awning type, wherein a plurality of sashes ar pivotally and slidably mounted in the frame and are connected together in a manner whereby they may be operated in unison.

Prior to my invention the sashes in Wmdows of this type were disposed inthe same plane, forming abutments at the contiguous ends of the sash. This minimizedthe area of the glass panels in the window.

The present invention has for its ob]ect to provide a generally improved operating mechanism for windows of the. type referred to, which mechanism will permit the sashes to be operated in unison or independent of each other, the mechanism also being designed so that the sides of the meeting rails of the sashes will abut and permit a maximum area of glass in the window. The mechanism is simple in construction and is arranged in concealed position adjacent the jambs of the frame. 7

One form which the invention may assume is exemplified in the following description and illustrated by way of example in the accompanying drawing, in which: A

Fig. 1 is aside elevation of the window constructed according to my invention, with the jamb removed to disclose the operating mechanism of the sashes.

Fig. 2 is a vertical'section through the window with the sashes in open position and with the inside stop removed.

Fig. 3 is a vertical section through the window disclosing the sashes disconnected from each other and with one sash in open position and the inside stop removed.

Fig. 4 is a plan section through one side of the frame disclosing the mechanism for operating the operating bars of my improved apparatus.

Fig. 5 is a similar section disclosing the osition of the operating bars beneath the inside stops.

Referring more particularly to the accompanying drawings, the window embodied in the present invention includes a frame 10 and a pair of swinging sashes 11.

. These sashes, as shown in Fig. 1, are offset.

With relation to each other so that the sides of the contiguous rails 11 of the sashes abut. The upper end of each sashis fitted with a pair of horizontally extending trunnions 12' which areslidably received in metal lined vertical grooves 13 formed in the faces of the jambs of the'frame 10. A pair of fulcrum links 14 is pivotally connected intermediat the ends of each sash and to the jambs. These links are interposed between the sides of the sash and the jambs and are concealed beneath the inner stops 9 fixed on the jambs. The mounting of the sashes permits the openin thereof by merely pushing outwardly on t eir lower ends.

It may be here observed that the mounting of the sashes is such that under all ordinary circumstances they will remain stationary in any position.

In order that there shall be an-absolutely tight closure between the meeting faces of the meeting rails of the sashes when the latter are in closed position the abutting faces of the rails of the sashes are formed with complementary recesses to form a double-rabbet joint.

Pivoted at their upper ends to the trunnions of the upper sash is a pair of travelling bars 15, which are disposed in the same plane as the fulcrum links 14, this being substantially flat against the jambs and beneath the stops 9. The travelling bars are offset as shown in Fig. 1 and extend downwardly to a point adjacent the trunnions on th lower sash. The offset in the travelling bars permit the latter to operate in a vertical direction. At their lower ends the travelling bars 15 are slotted as at 16 so that they may be engaged with the trunnions of the lower sash to connect the sashes together. When such engagement has been effected,

when one sash is moved the other moves in unison therewlth, and in order to permit one window to occupy a different position from the other I provide operating means for'the travelling bars whereby they may be engaged with or disconnected from the trunnions of the lower sash at will. Such means includes reciprocable clips 19 disposed in guideways formed in the jambs beneath the travelling bars 15, which clips are slidably connected with the travelling bars. Each clip'is provided with a stem 20 which extends through an opening in the frame. As shown, the stems are each fitted with a lever 22 to engage an escutcheon plate on the frame and to exert an outward pull on the stem and clip connected therewith.

It is obvious that when the levers- 22 are operated to move the clips outwardly the travelling bars will be swung about their pivots and their lower ends will be disengaged from the .trunnions of the lower sash, thus permitting the sashes to be oper-' clips to maintain the lower ends of the,

travelling bars in engagement-with the trun nions on the lower sash. To insure engagement of the travelling bars 15 with the trunnions on thelower sash, the lower ends of the travelling'bars-are formed cam shaped as illustrated. I v I In operation of the present invention, under normal circumstances, to open the sash it is only necessary to exert apressure on the lower end of one sash; The sashes will then swing outwardly in unison to any desired angle of inclination.

' described, these sashes remain in any position in which they are placed. If it is desired to open but one of the sashes the levers 22 are manipulatedto swing the travelling bars on their pivots to disconnect the lower ends of the bars 15 from the trunnions on the lower sash. Thesashes may then be operated independently of each other, as described. i

It is obvious'that when the levers 22 are released the springs 24 will automatically place the lower ends of the travelling bars into position where they will engage with the trunnions of the lower sash .to form an operative connection between the sashes so that they will swing in unison.

Itwill be noted that the operating mechanism is concealed beneath the inside stops 9 and therefore do not detract from the appearance of the window.

While I have shown the preferred form of my invention, it will be understood that various changes may be made in the combination, construction and arrangement of parts, without departing from the spirit of the invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent is: p I

1. In combination with a window frame, a plurality of superposed sashes therein, a pair of guideways in the frame for each sash, trunnions slidable in said guidewa s, said trunnions being connected to the si es of the sashes and constituting pivots for the As previously same, ,links between the sashes and the upper sash and detachably connected to the trunnion of the lower sash, and operative means for swinging said connecting bar about its pivot to disconnect-it from the trunnion of the lower sash to permit the sashes to be operated independently.

2. In combination with a window frame, a pair of superposed sashes, therein, a pair of guideways in the frame for each sash, trunnions slidable in said guideways, said trunnions being connected to the sides of the window sashes and constituting pivots for the same, links between the window sashes and the frame, said links being pivotally connected at their upper ends to the sashes and at their lower'ends to the frame and forming swinging fulcrums for the sashes, a connecting bar arranged intermediate of side'of the sash and the frame, said bar being pivoted at its upper end to the adjacent trunnions of the upper sash and hav ing a notch at its lower end for 'detachably engaging the adj acent-trunnions of the lower sash whereby to connect said sashes and to permit them to be simultaneously operated, and operative means for swinging said connecting bar about its pivot to disengage it from the trunnion of the lower sash whereby the sashes may be independently operated.

3. In combination with a window frame, a pair of superposed sashes therein, a pair of guideways in the frame for each sash, trunnions slidable in said guideways, said trunnions being connected to the sides of the window sashes and constituting pivots" for the same, links'between the window 1 sashes and the frame, said links being pivotally connected at their upper ends to the sashes and at their lower ends to the frame and forming swinging fulcrums for the sashes, connecting bars betweenthe sides ofthe sashes and the frame and pivotally mounted at their upper ends on the trunnions of the upper sash and detachably engaged with the trunnions of the lowersash whereby to permit said sashes to be operated in unison, and operative means for swinging said connecting bars about their pivots" to disengage them from the trunnions of the lower shaft whereby the sashes may be ndependently operated, said means comprismg clips slidably received onthe connectin bars, stems on the clips extending througfi the frame, and a lever on each stem for engagement with the frame to exert a pull on the bars whereb to swing the latter about their pivots an disengage them from the trunnions of the lower shaft.

4. In 'combinationwith a window frame having a head, sill and jambs, a pair of superposed sashes therein, a pair of guideways formed in the jambs for each sash, trunnions slidableflin said guideways, said trunnions ally connected at their upperends to the trunnions of the upper sash, notches in the lower ends of said connecting bars normally 'held in engagement with the trunnions on the lower sash, means for swinging said bars about their pivots whereby to disengage their notched lower ends from the trunnions of the lower sash, and a stop secured over each jamb to conceal the trunnions, connecting bar and links, and'also forming an abutting closure for the side portions of the sashes.

5. In combination with a window frame having ahead, sill and jambs, a-v-pa'iryof superposed sashes-therein, said sashes being v offset with relation to each other wherebythe sides of their'contiguous rails will, abut, a pair of, guideways in the jambs for each sash, trunnions slidable in said guideways,

said trunnions being connected to the sides of the sashes and constituting pivots for the same, links between the sashes and the jambs, said links being pivotally connected at their upper ends to the sashes and at their lower ends to the jambs and form'-.

ing swinging fulcrums for the sashes, connecting bars between the sashes and the jamb, said bars extending substantially vertically and having ofiset upper ends pivoted on the trunnions of the up er sash, notches in the lower ends of sai bars normally held in engagement with thetrunnions on the lower sash to connect said sashes together, means for bars about their pivots whereby they may be disengaged from the trunnions of the lower swinging said connecting shaft so that the sashes may be operated independently of each other the lower ends of said bars terminating in cam shaped portions adapted to engage the trunnions of the lower sash when the sashes are operated independently to facilitate engagement of sash.

6. In combination with a window frame having a head, a sill and jambs, a pair of' superposed sashes therein, said sashes the notches with the trunnions on said lower being offset with relation to each other whereby the sides of their contiguous rails will abut, a pair of guideways in the jambs for each sash, trunnions slidable in said guideways, said trunnions being connected to the sides of the sashes and.'constituting pivots for the same, links between the sashes and the jambs, said links being pivotally connected at their upper ends to the sashes and at their lower ends to the jambs and forming swinging fulcrums forthe sashes, connecting bars between the sashes and the jamb, said bars extendin substantially vertically and having an 0 set portion at their upper ends pivoted on the trunnions of the upper sash, open ended slots adjacent the lower ends of said bars normall'yengaged by the trunnionson the lower sash to connect said sashes together, and. means for swinging said connecting bars about their pivots whereby they may be engaged with or disengaged from the trunnions of the lower shaft so that the sashes may be operated independently of each other, said means constitutin recipro cable clips mounted in guideways ormed in saidvj ambs, said clips belng slidably received on said connecting bars, each of said clips being fitted with a stem extending outwardly from the frame, and a lever oneach stem for engagement with the stop to exert an outward pull on the bar whereby to discon-- I) engage the trunnions of the lower sash when the sashes; are operated independently to facilitate engagement of the slots with the trunnions on said lower sash; J a

Y JOHN J. DONOVAN. 

